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java.lang.Objectorg.apache.commons.collections4.iterators.EmptyIterator<E>
public class EmptyIterator<E>
Provides an implementation of an empty iterator.
This class provides an implementation of an empty iterator.
This class provides for binary compatibility between Commons Collections
2.1.1 and 3.1 due to issues with IteratorUtils
.
Field Summary | |
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static Iterator<Object> |
INSTANCE
Singleton instance of the iterator. |
static ResettableIterator<Object> |
RESETTABLE_INSTANCE
Singleton instance of the iterator. |
Constructor Summary | |
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protected |
EmptyIterator()
Constructor. |
Method Summary | ||
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void |
add(E obj)
|
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static
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emptyIterator()
Get a typed empty iterator instance. |
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boolean |
hasNext()
|
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boolean |
hasPrevious()
|
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E |
next()
|
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int |
nextIndex()
|
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E |
previous()
|
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int |
previousIndex()
|
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void |
remove()
|
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void |
reset()
|
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static
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resettableEmptyIterator()
Get a typed resettable empty iterator instance. |
|
void |
set(E obj)
|
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Methods inherited from interface org.apache.commons.collections4.ResettableIterator |
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reset |
Methods inherited from interface java.util.Iterator |
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hasNext, next, remove |
Field Detail |
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public static final ResettableIterator<Object> RESETTABLE_INSTANCE
public static final Iterator<Object> INSTANCE
Constructor Detail |
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protected EmptyIterator()
Method Detail |
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public static <E> ResettableIterator<E> resettableEmptyIterator()
E
- the element type
public static <E> Iterator<E> emptyIterator()
E
- the element type
public boolean hasNext()
public E next()
public boolean hasPrevious()
public E previous()
public int nextIndex()
public int previousIndex()
public void add(E obj)
public void set(E obj)
public void remove()
public void reset()
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